Summary

Filter housing for incoming or outgoing air.

Designed for pipes with a 105mm diameter.

The carbon filter I had was for a Nissan Qashqai 2006 1.5 diesel. You might be able to find them cheap at a car parts outlet. This filter is 20mm deep.

You'll need to cut the filter medium so it's 105mm square.

I used bathroom silicone between the filter edges and the housing to prevent leakage.

Superglue the two parts together and attach to the vent with tape.

20% PLA